Results 111 to 120 of about 29,188 (209)

Higher Conformal Multifractality

Journal of Statistical Physics, 2003
We derive, from conformal invariance and quantum gravity, the multifractal spectrum f(alpha,c) of the harmonic measure (or electrostatic potential, or diffusion field) near any conformally invariant fractal in two dimensions, corresponding to a conformal field theory of central charge c.
openaire   +3 more sources

Novel multifractal-based classification model for the quality grades of surrounding rock within tunnels

Underground Space
Understanding the variation patterns of tunnel boring machine (TBM) operational parameters is crucial for assessing engineering geological conditions and quality grades of surrounding rock within tunnels.
Junjie Ma, Tianbin Li, Zhen Zhang, Roohollah Shirani Faradonbeh, Mostafa Sharifzadeh, Chunchi Ma   +5 more
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Nonlinear and multifractal behaviour of atmospheric parameters and particulate matter in South Africa

Discover Geoscience
This study investigates the nonlinear and multifractal behavior of atmospheric parameters and particulate matter (PM10) in South Africa. We employed nonlinear techniques such as Sample Entropy, Lyapunov Exponent, and Correlation Dimension, alongside ...
Samuel Ogunjo, Joshua Akinsusi, Adedayo Adelakun, Ibiyinka Fuwape   +3 more
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Integrating Multifractal Features into Machine Learning for Improved Prediction

Fractal and Fractional
This study investigates the multifractal characteristics of the tanker freight market from 1998 to 2024. Using multifractal detrended fluctuation analysis (MF-DFA) and multifractal detrending moving average (MF-DMA), we analyze temporal correlations and ...
Feier Chen, Yi Sha, Huaxiao Ji, Kaitai Peng, Xiaofeng Liang   +4 more
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Multifractal Measures and Singularity Analysis of Rainfall Time Series in the Semi-Arid Central Mexican Plateau

Atmosphere
A multifractal formalism relates multiscale quantities to the multifractal spectrum. The multifractal framework provides significant analytical advantages by incorporating a wide range of statistical moment orders (q), thereby enabling a more ...
Alvaro Alberto López-Lambraño, Carlos Fuentes, Yeraldin Serpa-Usta, Neila María González Tejada, Alvaro López-Ramos   +4 more
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Machine-learning classification with additivity and diverse multifractal pathways in multiplicativity

Physical Review Research
Evidence of multifractal structures has spread to a wider set of physiological time series supporting the intricate interplay of biological and psychological functioning.
Madhur Mangalam, Henrik Seckler, Damian G. Kelty-Stephen   +2 more
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Investigating Nonlinear Dynamics in Atmospheric Aerosols during the Transition from Laminar to Turbulent Flow

Atmosphere
This paper investigates the nonlinear dynamics of atmospheric aerosols during the transition from laminar to turbulent flows using the framework of Scale Relativity Theory.
Marius Mihai Cazacu, Alin Iulian Roșu, Razvan Vasile Ababei, Adrian Roșu, Decebal Vasincu, Dragoș Constantin Nica, Oana Rusu, Andreea Bianca Bruma, Maricel Agop   +8 more
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Multifractality: Theory and Evidence an Application to the French Stock Market [PDF]

This article presents the basics of multifractal modelling and shows the multifractal properties of the French Stock Market (CAC40). Monte Carlo simulations prove that the Multifractal Model of Asset Returns (MMAR) is a better model to replicate the ...
Jérôme Fillol
core  

Multifractal analysis of Bitcoin price dynamics

Journal of Business Economics and Management
This research employs Multifractal Detrended Fluctuation Analysis (MFDFA) to investigate multifractal properties in financial variables, including Bitcoin prices and economic indicators.
Cristian Bucur, Bogdan-George Tudorică, Adela Bâra, Simona-Vasilica Oprea   +3 more
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ОТНОСИТЕЛЬНЫЕ РАЗМЕРНОСТИ РЕНЬИ

Проблемы анализа, 2012
Recently, many authors are discussing the use of methods of fractal geometry [5] to compare the distributions of the various measures. However, in practical applications, comparison of distributions by comparing the calculated multifractal spectra can be
СВЕТОВА Н.Ю.
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